https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99200
Bug ID: 99200
Summary: __PRETTY_FUNCTION__ used as template parameter causes
internal compiler error (segmentation fault)
Product: gcc
Version: 10.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: jbaptistapsilva at yahoo dot com.br
Target Milestone: ---
Created attachment 50235
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50235&action=edit
Preprocessor output
Trying to use the macro __PRETTY_FUNCTION__ as a string-literal converted type
parameter (using the new feature of literal classes as non-type template
parameters, and using the technique applied here:
https://ctrpeach.io/posts/cpp20-string-literal-template-parameters/) causes a
segmentation fault on the compiler, which is then posted as an internal
compiler error.
The version, system type and configuration options are:
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu
10.2.0-5ubuntu1~20.04' --with-bugurl=file:///usr/share/doc/gcc-10/README.Bugs
--enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++,m2 --prefix=/usr
--with-gcc-major-version-only --program-suffix=-10
--program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug
--enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new
--enable-gnu-unique-object --disable-vtable-verify --enable-plugin
--enable-default-pie --with-system-zlib --enable-libphobos-checking=release
--with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch
--disable-werror --with-arch-32=i686 --with-abi=m64
--with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic
--enable-offload-targets=nvptx-none=/build/gcc-10-WJNXnb/gcc-10-10.2.0/debian/tmp-nvptx/usr,amdgcn-amdhsa=/build/gcc-10-WJNXnb/gcc-10-10.2.0/debian/tmp-gcn/usr,hsa
--without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu
--host=x86_64-linux-gnu --target=x86_64-linux-gnu
gcc version 10.2.0 (Ubuntu 10.2.0-5ubuntu1~20.04)
Compiler executable checksum: d716f9df9d1b12ebc8fe860554136f35
The entire command line used was this:
g++-10 -std=c++2a -O3 pretty-function-segfault-gcc-10.cpp
The compiler output for the file is:
pretty-function-segfault-gcc-10.cpp: In function ‘consteval const char*
type_name()’:
pretty-function-segfault-gcc-10.cpp:37:49: internal compiler error:
Segmentation fault
37 | return TypeNameConverter<__PRETTY_FUNCTION__>{};
| ^
